/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.api.common.typeutils.base.array;

import org.apache.flink.api.common.ExecutionConfig;
import org.apache.flink.api.common.typeutils.TypeSerializer;
import org.apache.flink.api.common.typeutils.TypeSerializerMatchers;
import org.apache.flink.api.common.typeutils.TypeSerializerSchemaCompatibility;
import org.apache.flink.api.common.typeutils.TypeSerializerUpgradeTestBase;
import org.apache.flink.api.java.typeutils.TypeExtractor;
import org.apache.flink.testutils.migration.MigrationVersion;

import org.hamcrest.Matcher;

import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertSame;

public class PrimitiveArraySerializerUpgradeTestSpecifications {
	// ----------------------------------------------------------------------------------------------
	// Specification for "primitive boolean array"
	// ----------------------------------------------------------------------------------------------
	public static final class PrimitiveBooleanArraySetup implements TypeSerializerUpgradeTestBase.PreUpgradeSetup<boolean[]> {
		@Override
		public TypeSerializer<boolean[]> createPriorSerializer() {
			TypeSerializer<boolean[]> serializer = TypeExtractor.createTypeInfo(boolean[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), BooleanPrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public boolean[] createTestData() {
			boolean[] data = new boolean[2];
			data[0] = true;
			data[1] = false;
			return data;
		}
	}

	public static final class PrimitiveBooleanArrayVerifier implements TypeSerializerUpgradeTestBase.UpgradeVerifier<boolean[]> {
		@Override
		public TypeSerializer<boolean[]> createUpgradedSerializer() {
			TypeSerializer<boolean[]> serializer = TypeExtractor.createTypeInfo(boolean[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), BooleanPrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public Matcher<boolean[]> testDataMatcher() {
			boolean[] expected = new boolean[2];
			expected[0] = true;
			expected[1] = false;
			return is(expected);
		}

		@Override
		public Matcher<TypeSerializerSchemaCompatibility<boolean[]>> schemaCompatibilityMatcher(
				MigrationVersion version) {
			return TypeSerializerMatchers.isCompatibleAsIs();
		}
	}

	// ----------------------------------------------------------------------------------------------
	// Specification for "primitive byte array"
	// ----------------------------------------------------------------------------------------------
	public static final class PrimitiveByteArraySetup implements TypeSerializerUpgradeTestBase.PreUpgradeSetup<byte[]> {
		@Override
		public TypeSerializer<byte[]> createPriorSerializer() {
			TypeSerializer<byte[]> serializer = TypeExtractor.createTypeInfo(byte[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), BytePrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public byte[] createTestData() {
			byte[] dummy = new byte[10];
			for (int i = 0; i < dummy.length; ++i) {
				dummy[i] = (byte) i;
			}
			return dummy;
		}
	}

	public static final class PrimitiveByteArrayVerifier implements TypeSerializerUpgradeTestBase.UpgradeVerifier<byte[]> {
		@Override
		public TypeSerializer<byte[]> createUpgradedSerializer() {
			TypeSerializer<byte[]> serializer = TypeExtractor.createTypeInfo(byte[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), BytePrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public Matcher<byte[]> testDataMatcher() {
			byte[] expected = new byte[10];
			for (int i = 0; i < expected.length; ++i) {
				expected[i] = (byte) i;
			}
			return is(expected);
		}

		@Override
		public Matcher<TypeSerializerSchemaCompatibility<byte[]>> schemaCompatibilityMatcher(MigrationVersion version) {
			return TypeSerializerMatchers.isCompatibleAsIs();
		}
	}

	// ----------------------------------------------------------------------------------------------
	// Specification for "primitive char array"
	// ----------------------------------------------------------------------------------------------
	public static final class PrimitiveCharArraySetup implements TypeSerializerUpgradeTestBase.PreUpgradeSetup<char[]> {
		@Override
		public TypeSerializer<char[]> createPriorSerializer() {
			TypeSerializer<char[]> serializer = TypeExtractor.createTypeInfo(char[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), CharPrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public char[] createTestData() {
			char[] data = new char[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = (char) i;
			}
			return data;
		}
	}

	public static final class PrimitiveCharArrayVerifier implements TypeSerializerUpgradeTestBase.UpgradeVerifier<char[]> {
		@Override
		public TypeSerializer<char[]> createUpgradedSerializer() {
			TypeSerializer<char[]> serializer = TypeExtractor.createTypeInfo(char[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), CharPrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public Matcher<char[]> testDataMatcher() {
			char[] data = new char[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = (char) i;
			}
			return is(data);
		}

		@Override
		public Matcher<TypeSerializerSchemaCompatibility<char[]>> schemaCompatibilityMatcher(MigrationVersion version) {
			return TypeSerializerMatchers.isCompatibleAsIs();
		}
	}

	// ----------------------------------------------------------------------------------------------
	// Specification for "primitive double array"
	// ----------------------------------------------------------------------------------------------
	public static final class PrimitiveDoubleArraySetup implements TypeSerializerUpgradeTestBase.PreUpgradeSetup<double[]> {
		@Override
		public TypeSerializer<double[]> createPriorSerializer() {
			TypeSerializer<double[]> serializer = TypeExtractor.createTypeInfo(double[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), DoublePrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public double[] createTestData() {
			double[] data = new double[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = i + 0.1f;
			}
			return data;
		}
	}

	public static final class PrimitiveDoubleArrayVerifier implements TypeSerializerUpgradeTestBase.UpgradeVerifier<double[]> {
		@Override
		public TypeSerializer<double[]> createUpgradedSerializer() {
			TypeSerializer<double[]> serializer = TypeExtractor.createTypeInfo(double[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), DoublePrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public Matcher<double[]> testDataMatcher() {
			double[] data = new double[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = i + 0.1f;
			}
			return is(data);
		}

		@Override
		public Matcher<TypeSerializerSchemaCompatibility<double[]>> schemaCompatibilityMatcher(MigrationVersion version) {
			return TypeSerializerMatchers.isCompatibleAsIs();
		}
	}

	// ----------------------------------------------------------------------------------------------
	// Specification for "primitive float array"
	// ----------------------------------------------------------------------------------------------
	public static final class PrimitiveFloatArraySetup implements TypeSerializerUpgradeTestBase.PreUpgradeSetup<float[]> {
		@Override
		public TypeSerializer<float[]> createPriorSerializer() {
			TypeSerializer<float[]> serializer = TypeExtractor.createTypeInfo(float[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), FloatPrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public float[] createTestData() {
			float[] data = new float[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = i + 0.2f;
			}
			return data;
		}
	}

	public static final class PrimitiveFloatArrayVerifier implements TypeSerializerUpgradeTestBase.UpgradeVerifier<float[]> {
		@Override
		public TypeSerializer<float[]> createUpgradedSerializer() {
			TypeSerializer<float[]> serializer = TypeExtractor.createTypeInfo(float[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), FloatPrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public Matcher<float[]> testDataMatcher() {
			float[] data = new float[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = i + 0.2f;
			}
			return is(data);
		}

		@Override
		public Matcher<TypeSerializerSchemaCompatibility<float[]>> schemaCompatibilityMatcher(MigrationVersion version) {
			return TypeSerializerMatchers.isCompatibleAsIs();
		}
	}

	// ----------------------------------------------------------------------------------------------
	// Specification for "primitive int array"
	// ----------------------------------------------------------------------------------------------
	public static final class PrimitiveIntArraySetup implements TypeSerializerUpgradeTestBase.PreUpgradeSetup<int[]> {
		@Override
		public TypeSerializer<int[]> createPriorSerializer() {
			TypeSerializer<int[]> serializer = TypeExtractor.createTypeInfo(int[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), IntPrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public int[] createTestData() {
			int[] data = new int[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = i;
			}
			return data;
		}
	}

	public static final class PrimitiveIntArrayVerifier implements TypeSerializerUpgradeTestBase.UpgradeVerifier<int[]> {
		@Override
		public TypeSerializer<int[]> createUpgradedSerializer() {
			TypeSerializer<int[]> serializer = TypeExtractor.createTypeInfo(int[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), IntPrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public Matcher<int[]> testDataMatcher() {
			int[] data = new int[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = i;
			}
			return is(data);
		}

		@Override
		public Matcher<TypeSerializerSchemaCompatibility<int[]>> schemaCompatibilityMatcher(MigrationVersion version) {
			return TypeSerializerMatchers.isCompatibleAsIs();
		}
	}

	// ----------------------------------------------------------------------------------------------
	// Specification for "primitive long array"
	// ----------------------------------------------------------------------------------------------
	public static final class PrimitiveLongArraySetup implements TypeSerializerUpgradeTestBase.PreUpgradeSetup<long[]> {
		@Override
		public TypeSerializer<long[]> createPriorSerializer() {
			TypeSerializer<long[]> serializer = TypeExtractor.createTypeInfo(long[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), LongPrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public long[] createTestData() {
			long[] data = new long[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = i;
			}
			return data;
		}
	}

	public static final class PrimitiveLongArrayVerifier implements TypeSerializerUpgradeTestBase.UpgradeVerifier<long[]> {
		@Override
		public TypeSerializer<long[]> createUpgradedSerializer() {
			TypeSerializer<long[]> serializer = TypeExtractor.createTypeInfo(long[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), LongPrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public Matcher<long[]> testDataMatcher() {
			long[] data = new long[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = i;
			}
			return is(data);
		}

		@Override
		public Matcher<TypeSerializerSchemaCompatibility<long[]>> schemaCompatibilityMatcher(MigrationVersion version) {
			return TypeSerializerMatchers.isCompatibleAsIs();
		}
	}

	// ----------------------------------------------------------------------------------------------
	// Specification for "primitive short array"
	// ----------------------------------------------------------------------------------------------
	public static final class PrimitiveShortArraySetup implements TypeSerializerUpgradeTestBase.PreUpgradeSetup<short[]> {
		@Override
		public TypeSerializer<short[]> createPriorSerializer() {
			TypeSerializer<short[]> serializer = TypeExtractor.createTypeInfo(short[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), ShortPrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public short[] createTestData() {
			short[] data = new short[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = (short) i;
			}
			return data;
		}
	}

	public static final class PrimitiveShortArrayVerifier implements TypeSerializerUpgradeTestBase.UpgradeVerifier<short[]> {
		@Override
		public TypeSerializer<short[]> createUpgradedSerializer() {
			TypeSerializer<short[]> serializer = TypeExtractor.createTypeInfo(short[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), ShortPrimitiveArraySerializer.class);
			return serializer;
		}

		@Override
		public Matcher<short[]> testDataMatcher() {
			short[] data = new short[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = (short) i;
			}
			return is(data);
		}

		@Override
		public Matcher<TypeSerializerSchemaCompatibility<short[]>> schemaCompatibilityMatcher(MigrationVersion version) {
			return TypeSerializerMatchers.isCompatibleAsIs();
		}
	}

	// ----------------------------------------------------------------------------------------------
	// Specification for "primitive string array"
	// ----------------------------------------------------------------------------------------------
	public static final class PrimitiveStringArraySetup implements TypeSerializerUpgradeTestBase.PreUpgradeSetup<String[]> {
		@Override
		public TypeSerializer<String[]> createPriorSerializer() {
			TypeSerializer<String[]> serializer = TypeExtractor.createTypeInfo(String[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), StringArraySerializer.class);
			return serializer;
		}

		@Override
		public String[] createTestData() {
			String[] data = new String[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = String.valueOf(i);
			}
			return data;
		}
	}

	public static final class PrimitiveStringArrayVerifier implements TypeSerializerUpgradeTestBase.UpgradeVerifier<String[]> {
		@Override
		public TypeSerializer<String[]> createUpgradedSerializer() {
			TypeSerializer<String[]> serializer = TypeExtractor.createTypeInfo(String[].class).createSerializer(new ExecutionConfig());
			assertSame(serializer.getClass(), StringArraySerializer.class);
			return serializer;
		}

		@Override
		public Matcher<String[]> testDataMatcher() {
			String[] data = new String[10];
			for (int i = 0; i < data.length; ++i) {
				data[i] = String.valueOf(i);
			}
			return is(data);
		}

		@Override
		public Matcher<TypeSerializerSchemaCompatibility<String[]>> schemaCompatibilityMatcher(MigrationVersion version) {
			return TypeSerializerMatchers.isCompatibleAsIs();
		}
	}

}

